词根：-log-

【词根含义】：说话,推理,计算

【词根来源】：-log-来源于希腊语logos, ou, o(说话,推理,计算)和logistikos(精于计算的,精于推理的)。

【同源单词】：analog, analogous, analogy, apologize, apology

前缀：eu-

【词根含义】：优,善,好

【同源单词】：eulogize, eulogy, euphemism, euphonious, euphony

词根词缀：eu-

【来源及含义】Greek: good, well, normal; happy, pleasing; used as a prefix

【同源单词】aneuploid, aneuploidy, eubiotics, Eucalyptus, eucentric, eucharist